What's the best way to solve that? i'm not understanding the whole lcd part

Solve the following inequalities and show the solution on a number line. 2x+3< 3(4x+5)

Raymond just got done jumping at super bounce trampoline center. the total cost of his session was $43.25 . he had to pay a $7 entrance fee and $1.25 for every minute he was on the trampoline. write an equation to determine the number of minutes (t) that raymond was on the trampoline.

Which diagram shows lines that must be parallel lines cut by transversal?